First thing I noticed was the soundstage. It's MUCH better than the first CAL!. Much more air overall in the music. Good for movies as well.

I thought the bass was too boomy at first, but after some burn-in it became better. Maybe I just needed to adjust to the new sound signature? But honestly, now after som burn-in I can definitely say that the bass quality and extension is better.

I don't like the cable. I mean it's fine for a headphone in this price range, but it feels a bit flimsy. I'll probably buy a new cable, since it's detachable.

The price is almost twice that of the firsl CAL!. I could spend a bit more, and go for the AKG K550, but honestly, the comfort on this headphone is better than the AKG, and I don't think there's a big difference in sound quality. I'd say the soundstage is the same? This headphone is a serious contender to other closed-backs with big soundstage.

The build quality is also an improvement, it just touches your head gently, and you don't feel pressure at all.